This bundle includes

• a unit introduction and overview, especially a 2 page handout summarizing the ideas of special and general relativity and their logical consequences (38 pages)
• a lesson for teaching relativistic momentum (essential to all working particle accelerators) (22 pages)
• a lesson for teaching the two ideas of special relativity that are going to have all the logical (but hard to accept) consequences (37 pages)
• a lesson for teaching why observers in relative motion and in different locations cannot agree on measurements of time (and distance) (22 pages)
• a lesson for teaching length contraction (15 pages)
• a lesson for teaching time dilation (33 pages)
• a lesson for teaching the idea behind general relativity and its fundamental (and hard to accept) consequence(s) (31 pages)
• a bonus file with ways to discuss traveling through spacetime (12 pages)